package com.xj.community.util;

import com.alibaba.fastjson.JSONObject;
import com.xj.community.entity.User;
import org.apache.commons.lang3.StringUtils;
import org.springframework.util.DigestUtils;

import java.util.Map;
import java.util.UUID;

public class CommunityUtil {

    // 生成随机字符串
    public static String generateUUID() {
        return UUID.randomUUID().toString().replaceAll("-", "");
    }

    // MD5加密
    // hello -> abc123def456
    // hello + 3e4a8 -> abc123def456abc
    public static String md5(String key) {
        if (StringUtils.isBlank(key)) {
            return null;
        }
        return DigestUtils.md5DigestAsHex(key.getBytes());
    }

    /**
     *将信息转换成json字符串
     * @param code:响应状态码
     * @param msg：响应状态信息
     * @return服务器向浏览器返回json字符串
     */
    public static String getJSONString(int code, String msg, Map<String,Object> map){
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("code",code);
        jsonObject.put("msg",msg);
        if(map != null){
            for(String key : map.keySet()){
                jsonObject.put(key,map.get(key));
            }
        }
        return jsonObject.toJSONString();
    }

    public static String getJSONString(int code,String msg){
        return getJSONString(code,msg,null);
    }

    public static String getJSONString(int code){
        return getJSONString(code,null);
    }
}
